[04-Jun-2018 16:38:33 UTC] PHP Parse error: syntax error, unexpected end of file in /home/example/example.com/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php on line 765

I got that in error logs. So today I hit update to the new wordpress version by accident then I tried to exit outta that area because I didnt want to update. Then It said Scheduled maintenance then I changed the WP_INSTALL: to false. then i set it to true. When i go on the website it says
This page isn't working
example.com is currently unable to handle this request.
HTTP ERROR 500